προκαταβολή

A. payment on account: in Att. Law, caution money paid down by a farmer of the revenue, AB 193, EM 148.52, Phot.
II. foundation: metaph. of medical treatment, π. τῇ θεραπείᾳ Philum. Ven. 3.1; condition precedent, Ammon, in Int. 145.12.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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